Batwoman is a superheroine appearing in American comic books published by DC Comics. She is the first DC character to bear the name "Batwoman". She was created by writer Edmond Hamilton and artist Sheldon Moldoff under the direction of editor Jack Schiff, as part of an ongoing effort to expand Batman's cast of supporting characters. Batwoman began appearing in DC Comics stories beginning with Detective Comics #233 (1956), in which she was introduced as a love interest for Batman in order to combat the allegations of Batman's homosexuality arising from the controversial book Seduction of the Innocent (1954). When Julius Schwartz became editor of the Batman-related comic in 1964, he removed non-essential characters including Kathy Kane, Bat-Girl, Bat-Mite, and Ace the Bat-Hound. Later, the 1985 limited series Crisis on Infinite Earths retroactively established that Batwoman's existence was on an Earth separate from DC's main continuity.

Batwoman is a name used by several characters of DC Comics, both in mainstream continuity and Elseworlds. The best known Batwomen are Kathy Kane and Kate Kane, while several original incarnations have appeared in adapted media.